Return the top padding of a <div> element:
alert(document.getElementById("myDiv").style.paddingTop);
<!DOCTYPE html> <html> <head> <style> #myDiv {//from w w w .j a v a 2s .c o m border: 1px solid #FF0000; } </style> </head> <body> <div id="myDiv" style="padding-top:5cm;">This is a div.</div> <br> <button type="button" onclick="myFunction()">Return top padding</button> <p id="demo"></p> <script> function myFunction() { document.getElementById("demo").innerHTML = document.getElementById("myDiv").style.paddingTop; } </script> </body> </html>